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Finding the Fourth Proportional to 28,992.30, 43,470.84 and 14,182.68

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Solution

The fourth proportional to 28,992.30, 43,470.84 and 14,182.68 is: 21,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.30 : 43,470.84 = 14,182.68 : x
  2. Step 2: Convert to fraction form
    28,992.30/43,470.84 = 14,182.68/x
  3. Step 3: Cross multiply
    28,992.30x = 43,470.84 × 14,182.68
  4. Step 4: Simplify right side
    28,992.30x = 616,533,013.05
  5. Step 5: Solve for x
    x = 616,533,013.05/28,992.30
  6. Step 6: Final answer
    x = 21,265.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.